As you may have noticed, the RHEL 6 Beta released today. For more
details about RHEL 6, look here:
http://press.redhat.com/2010/04/21/red-hat-enterprise-linux-6-beta-available-today-for-public-download/
[...]
In addition, there are some packages which were present in RHEL 5, but
are absent in RHEL 6. Most of these packages are accounted for because
of the dropping of gtk+ support, updating of configuration tools,
standardization on hunspell, move from scim to ibus, or the move to
KDE4. Some are just obsolete, and others were removed for space
concerns. Some of them might be interesting for EPEL: